What is the value of x in the equation -6/7 equals x/84

Solve for x:
(-6)/7 = x/84
(-6)/7 = x/84 is equivalent to x/84 = (-6)/7:
x/84 = -6/7
Multiply both sides of x/84 = (-6)/7 by 84:
(84 x)/84 = (-6×84)/7
(84 (-6))/7 = (84 (-6))/7:
(84 x)/84 = (-6×84)/7
(84 x)/84 = 84/84×x = x:
x = (-6×84)/7

7 | 1 | 2
 | 8 | 4
- | 7 | 
 | 1 | 4
- | 1 | 4
 | | 0:
x = -612

12 (-6) = -72:

Answer:  x = -72